ora-04031 errors

From: Fedock, John (KAM.RHQ) <John.Fedock_at_KLINE.com>
Date: Mon, 28 Jan 2002 08:06:51 -0800
Message-ID: <F001.003FD0BB.20020128062049@fatcity.com>

I have been getting ora-04031 errors, even though I have much free space within my shared_pool - probably too much free actually. I set up some scripts to run every 10 minutes and as recently as 3 minutes before my ora-04031 errors started again, my shared_pool free memory was 26M based on the query:

select sysdate, bytes
from v$sgastat
where pool = 'shared pool'
and name = 'free memory';

and myhit ratio was 99.16.

Finally, from Steve Adams site, I ran the following query, and you can see where the errors start.

RUN_DATE RECURRENT_CHUNKS TRANSIENT_CHUNKS FLUSHED_CHUNKS PINS_AND_RELEASED ORA_4031_ERRORS LAST_ERROR_SIZE

-------------------- ---------------- ---------------- --------------
----------------- --------------- --------------- 
 28-Jan-2002 2:00:00              296              971        2663763
41743160               0               0 
 28-Jan-2002 2:10:01              344              961        2669731
41788495               0               0 
 28-Jan-2002 2:20:01              421              726        2673795
41819190               0               0 
 28-Jan-2002 2:30:01              473              941        2680027
41865752               0               0 
 28-Jan-2002 2:40:01              271              625        2686803
41910898               0               0 
 28-Jan-2002 2:50:01              232              596        2823830
42714680               0               0 
 28-Jan-2002 3:00:01              242              420        3100201
44175166               1            4168 
 28-Jan-2002 3:10:01               77              187        3364790
45424772            1116            4168

Can someone point out some other things to research? I am thinking that even though I have free space in memory , maybe it is fragmeneted?

John Fedock
"K" Line America
john.fedock_at_kline.com
www.kline.com

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Author: Fedock, John (KAM.RHQ)
INET: John.Fedock_at_KLINE.com

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